在如图所示的拓扑中,在RTA执行如下配置: 现要求RTC上不得学习到上述 RTA 中配置的路由192.168.2.0/24,则可以在路由器上执行哪些配置?
A.
RTB] acl number 2000 RTB-acl-basic-2000] rule 0 permit source 192.168.0.0 0.0.255.255 RTB-acl-basic-2000] rule 5 permit source 192.168.1.0 0.0.255.255 RTB-acl-basic-2000] rule 10 permit source 192.168.3.0 0.0.255.255 RTB-ospf-1-area-0.0.0.1] filter 2000 export
B.
RTB-ospf-1-area-0.0.0.1]abr-summar192.168.2.0 255.255.255.0 not-advertise
C.
RTB] acl number 2000 RTB-acl-basic-2000] rule 0 permit source 192.168.0.0 0.0.255.255 RTB-acl-basic-2000] rule 5 permit source 192.168.1.0 0.0.255.255 RTB-acl-basic-2000] rule 10 permit source 192.168.3.0 0.0.255.255 RTB-ospf-1] filter-polic2000 import
D.
RTC] acl number 2000 RTC-acl-basic-2000] rule 0 permit source 192.168.0.0 0.0.255.255 RTC-acl-basic-2000] rule 5 permit source 192.168.1.0 0.0.255.255 RTC-acl-basic-2000] rule 10 permit source 192.168.3.0 0.0.255.255 RTC-ospf-1] filter-polic2000 import